/* reagent-mui-nested-menu demo. Matches the jonramos.dev terminal aesthetic. */

:root {
  /* INK (navy) — the signature default ground, matching jonramos.dev */
  --color-bg: #0a1020;
  --color-bg-elevated: #0e1626;
  --color-bg-surface: #131c2e;
  --color-text: #f1f7fb;
  --color-text-muted: #a3b0c4;
  --color-text-subtle: #7384a0;
  --color-primary: #5cb6b8;
  --color-primary-muted: rgba(92, 182, 184, 0.15);
  --color-secondary: #a9b1d1;
  --color-accent: #f08562;
  --color-featured: #f4bdce;
  --color-border: rgba(214, 233, 240, 0.1);
  --color-border-emphasis: rgba(214, 233, 240, 0.2);
  --grid-line: rgba(92, 182, 184, 0.05);

  --font-mono:
    "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --font-serif: "Crimson Pro", Georgia, "Times New Roman", serif;
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --max-width: 1080px;
}

/* SKY (pale blue) light ground. Muted/subtle tones are darkened from the
   raw brand scale so small text clears WCAG AA contrast on the light bg. */
[data-theme="light"] {
  --color-bg: #e8f2f7;
  --color-bg-elevated: #ffffff;
  --color-bg-surface: #d6e9f0;
  --color-text: #0e1626;
  --color-text-muted: #525d85;
  --color-text-subtle: #586480;
  --color-primary: #267879;
  --color-primary-muted: rgba(38, 120, 121, 0.1);
  --color-secondary: #525d85;
  --color-accent: #b8472b;
  --color-featured: #823850;
  --color-border: rgba(14, 22, 38, 0.1);
  --color-border-emphasis: rgba(14, 22, 38, 0.2);
  --grid-line: rgba(38, 120, 121, 0.05);
}

* {
  box-sizing: border-box;
}

html {
  font-size: 17px;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-serif);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  transition:
    background 0.4s var(--ease-out-expo),
    color 0.4s var(--ease-out-expo);
}

/* terminal grid background */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(circle at 50% 0%, #000 0%, transparent 75%);
}

/* aurora — drifting coastal colour pools behind the grid,
   matching jonramos.dev */
body::after {
  content: "";
  position: fixed;
  inset: -20%;
  z-index: -2;
  pointer-events: none;
  background:
    radial-gradient(
      38% 30% at 18% 12%,
      rgba(49, 153, 155, 0.13),
      transparent 70%
    ),
    radial-gradient(
      30% 26% at 85% 8%,
      rgba(142, 152, 194, 0.1),
      transparent 70%
    ),
    radial-gradient(
      26% 22% at 75% 86%,
      rgba(244, 189, 206, 0.05),
      transparent 70%
    );
  filter: blur(40px);
}

[data-theme="light"] body::after {
  background:
    radial-gradient(
      38% 30% at 18% 12%,
      rgba(49, 153, 155, 0.12),
      transparent 70%
    ),
    radial-gradient(
      30% 26% at 85% 8%,
      rgba(142, 152, 194, 0.14),
      transparent 70%
    ),
    radial-gradient(
      26% 22% at 75% 86%,
      rgba(244, 189, 206, 0.16),
      transparent 70%
    );
}

@media (prefers-reduced-motion: no-preference) {
  body::after {
    animation: aurora-drift 26s ease-in-out infinite alternate;
  }
}

@keyframes aurora-drift {
  from {
    transform: translate3d(-2%, -1.5%, 0) scale(1);
  }
  to {
    transform: translate3d(2%, 1.5%, 0) scale(1.06);
  }
}

/* film grain — breaks up the flat digital surfaces */
html::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 50;
  pointer-events: none;
  opacity: 0.05;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

html[data-theme="light"]::after {
  opacity: 0.035;
}

h1,
h2,
h3 {
  margin: 0;
  font-family: var(--font-mono);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.15;
}

a {
  color: var(--color-secondary);
  text-decoration: none;
}

::selection {
  background: var(--color-primary);
  color: var(--color-bg);
}

/* ---- top bar ---- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem clamp(1rem, 4vw, 2.5rem);
  border-bottom: 1px solid var(--color-border);
  background: color-mix(in srgb, var(--color-bg) 82%, transparent);
  backdrop-filter: blur(12px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: -0.01em;
  color: var(--color-text);
}

.brand-mark {
  width: auto;
  height: 22px;
  display: block;
  flex: 0 0 auto;
}

.brand .slash {
  color: var(--color-primary);
}

.topbar-links {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.top-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--color-text-muted);
  padding: 0.4rem 0.7rem;
  border-radius: 6px;
  border: 1px solid transparent;
  transition: all 0.2s var(--ease-out-expo);
}

.top-link:hover {
  color: var(--color-text);
  border-color: var(--color-border);
  background: var(--color-bg-surface);
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  border: 1px solid var(--color-border);
  background: var(--color-bg-elevated);
  color: var(--color-text-muted);
  cursor: pointer;
  transition: all 0.2s var(--ease-out-expo);
}

.theme-toggle:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
}

/* ---- shell ---- */
.shell {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: clamp(2rem, 6vw, 4.5rem) clamp(1rem, 4vw, 2rem) 4rem;
}

/* ---- hero ---- */
.hero {
  padding-bottom: 2.6rem;
  margin-bottom: 2.4rem;
  border-bottom: 1px solid var(--color-border);
}

.eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--color-primary);
  padding: 0.3rem 0.7rem;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  background: var(--color-primary-muted);
}

.hero h1 {
  margin: 1.1rem 0 0;
  font-size: clamp(2.4rem, 7vw, 4rem);
  color: var(--color-text);
}

.hero h1 .accent {
  color: var(--color-primary);
}

.lead {
  margin: 1rem 0 0;
  max-width: 60ch;
  font-size: 1.18rem;
  color: var(--color-text-muted);
  font-family: var(--font-serif);
}

.hero-actions {
  margin-top: 1.7rem;
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  align-items: center;
}

.install {
  margin-top: 1.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.install code {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--color-text-muted);
  background: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: 0.45rem 0.7rem;
}

.install code .tok {
  color: var(--color-primary);
}

/* ---- section titles (// motif) ---- */
.section-title {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  font-family: var(--font-mono);
  font-size: 1.4rem;
  color: var(--color-text);
  margin-bottom: 1.4rem;
}

.section-title::before {
  content: "//";
  color: var(--color-primary);
  font-weight: 400;
}

/* ---- grid + cards ---- */
.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.1rem;
}

.card {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 1.2rem;
  transition:
    border-color 0.25s var(--ease-out-expo),
    transform 0.25s var(--ease-out-expo);
}

.card:hover {
  border-color: var(--color-primary);
  transform: translateY(-2px);
}

.card-head h2 {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1rem;
  color: var(--color-text);
}

.card-head h2::before {
  content: "//";
  color: var(--color-primary);
  font-weight: 400;
  font-size: 0.85rem;
}

.card-blurb {
  margin: 0.4rem 0 0;
  font-size: 0.98rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

.card-stage {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem 0;
  min-height: 54px;
}

.snippet {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  line-height: 1.5;
  color: var(--color-text-muted);
  background: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: 0.7rem 0.8rem;
  overflow: auto;
  white-space: pre;
}

/* ---- context + log row ---- */
.context-row {
  margin-top: 1.1rem;
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 1.1rem;
}

.context-target {
  position: relative;
  width: 100%;
  height: 210px;
  border-radius: 8px;
  border: 1px dashed var(--color-border-emphasis);
  background: var(--color-bg-surface);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-subtle);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  user-select: none;
  overflow: hidden;
  cursor: context-menu;
}

.context-glow {
  position: absolute;
  width: 300px;
  height: 300px;
  background: radial-gradient(
    circle,
    var(--color-primary-muted),
    transparent 65%
  );
  animation: drift 8s ease-in-out infinite alternate;
}

@keyframes drift {
  from {
    transform: translate(-70px, -34px);
  }
  to {
    transform: translate(70px, 34px);
  }
}

.context-target span {
  position: relative;
  z-index: 1;
}

.log-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.ghost-btn {
  font-family: var(--font-mono);
  border: 1px solid var(--color-border);
  background: transparent;
  color: var(--color-text-muted);
  border-radius: 6px;
  padding: 0.3rem 0.75rem;
  font-size: 0.76rem;
  cursor: pointer;
  transition: all 0.2s var(--ease-out-expo);
}

.ghost-btn:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.log {
  list-style: none;
  margin: 0.9rem 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  max-height: 170px;
  overflow: auto;
  font-family: var(--font-mono);
  font-size: 0.78rem;
}

.log li {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  color: var(--color-text);
  animation: fade-in 0.25s var(--ease-out-expo);
}

.log .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-primary);
  flex: 0 0 auto;
  box-shadow: 0 0 8px var(--color-primary);
}

.log-empty {
  color: var(--color-text-subtle);
}

@keyframes fade-in {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
}

/* ---- footer ---- */
.footer {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1.6rem clamp(1rem, 4vw, 2rem) 2.5rem;
  border-top: 1px solid var(--color-border);
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1.2rem;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--color-text-subtle);
}

.footer a {
  color: var(--color-text-muted);
}

.footer a:hover {
  color: var(--color-primary);
}

.footer .sep {
  color: var(--color-border-emphasis);
}

@media (max-width: 900px) {
  .grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .context-row {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .grid {
    grid-template-columns: 1fr;
  }
  .top-link span {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
    animation: none !important;
  }
}